A macro like that would be possible, although I can't say without
trying it whether the comment/annotation would come along.

There would have to be some preliminary code in the macro to open the
document containing the replacements (assuming the document to be
modified is already open), and set up some variables.

The core of the code would be a loop that steps through the rows of
the replacements table. For each row, it would run an inner loop that
uses the Find property of a Range object to search the active document
for the text from the first column. Each time it's found, the code
would replace the found text with the contents of the second column,
using the Range object's .FormattedText property.

It wouldn't be very hard to program, but it isn't something you can
just throw together -- there are usually some fiddly bits that need
tweaking after you test it with the real data.

--
Regards,
Jay Freedman
Microsoft Word MVP        FAQ: http://word.mvps.org
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